COMPACT RAIL: THE LINEAR MOTION SOLUTION · The sliders run inside the hardened steel rails where...

A5

COMPACT RAIL:THE LINEAR MOTION SOLUTION

ROLLON’s COMPACT RAIL is different from all other linear bearing systems available in themarket. Compact Rail solves problems.Whereas most linear bearings are descendents of heavy machine tool bearings and thereforeby nature tend to be slow, recirculating-ball carriages mounted on simple round or profiled shafts,ROLLON started from scratch and designed a linear bearing system based on the needs ofmodern design engineers. We realized that while most linear bearings are applied in applicationsrequiring good linear precision, few require machine tool-like, ultra-high precision. High precisiongrade rails (most popular round or profiled shafting fall into this category) are difficult, timeconsuming, and expensive systems that require machining of the mounting surfaces (a costwhich often cannot be passed on to the customer).

COMPACT RAIL is a simple, precision, linear bearing system that is easy and inexpensiveto mount to all - even non-machined- surfaces. What’s more, COMPACT RAIL will self-alignto another rail if mounting surfaces are not perfectly parallel.We found that many linear bearing applications were in dirty or contaminated environmentsand that engineers were forced to specify external bellows or other costly protective devices.

COMPACT RAIL is a well-protected system. The sliders run inside the hardened steel railswhere they are protected. They have spring-loaded wipers which protect the shielded orsealed bearings from debris and damage.Many engineers told us that recirculating ball sliders were slow and noisy and this effectedthe quality of their machines.

COMPACT RAIL is a fast (up to 9 m/s) and silent system (much quieter than recirculatingball systems).Our customers told us of their need to make their new machinery as maintenance free aspossible.

COMPACT RAIL has “lubed for life” bearings with patented wiper technology that lubricatesthe system as it runs. Even while we have achieved our goals and manufactured the mostcomprehensive linear bearings available, we will continue to strive to build the best productsand surpass the needs of linear motion for the future.

“T” RAIL “U” RAIL “K” RAIL

U 8A6

ADVANTAGES OFCOMPACT SYSTEM

The original design of ROLLON’s COMPACT RAIL products allow them to offer many uniqueadvantages. The compactness of the products, the protection offered by the internal raceways,the high operating speeds, and the extreme ease in mounting are just of few of them.

INTERNAL RACEWAYS PROVIDE A COMPACTAND WELL PROTECTED SOLUTIONCompactness is an important advantage in those applications where compact linear bearingswould be of clear benefit to the ease of construction and of immeasurable benefit to the design.Our unique design places the raceways on the inside of the rails where they are protected frombumps or shocks. The sliders, which are protected from debris and impurities with theirincorporated spring-loaded wipers run inside of the rails. The COMPACT RAIL system fits into anextremely limited space and offers the best protected solution available for even the most forcritical environments.

MAINTENANCE FREEThe self-lubricating wipers available for the NT series sliders continually applies a thin layer oflubrication to the system. This constant lubrication assures 2 millions cycles before additionalmaintenance or substitution is required. The cost savings of this system when compared toother systems are incredible. The kits can also be refilled by using the grease nipples on theheads. This advance in lubrication technology does not add any length to the sliders as it fitsinto the same dimensions as the standard heads.

HIGH SPEED - HIGH PRODUCTIVITYFor a wide range of applications and especially in the automationfield, the most important bearing feature is often speed, as thespeed determines the productivity.Higher working-speed results is higher output.The COMPACT RAIL system offer solutions which can be run atnearly 9m/s; an incredibly high speed compared to commonsystems.

eziS ]s/m[deepS

seires81 3

seires82 5

seires34 7

seires36 9

A7

SILENT OPERATION LEVELWith today’s restrictive regulations for admissible working noise levels, it’s become more andmore important to keep a machine’s operation noise level as low as possible.The COMPACT RAIL system offers very low operation noise level, even when working with highloads and high speed. This is the opposite of recirculating ball sliders that become much noisieras the speed and load increases.Below figure indicates a typical comparison of operation noise level.

QUICK AND EASY ASSEMBLYINGThe cost of assembly-time is often neglected during the designing stage as many engineersassume that the time for assembly is a fixed factor, equal for all linear bearings.The COMPACT RAIL system has been studied to facilitate in mounting and to offer high costsavings on assembly-time. In addition, substantial cost savings is also gained due to lowrequirement of the accuracy of the mounting surface finish.The main time saving characteristics are offered by the self-aligning rail combinations T/U andK/U, the self-aligning rails with C’sunk fixing holes, and the small number of fixing screws due tothe large pitch of the rails.

OPTIMUM PRELOAD SETTINGFor applications where the stiffness or low friction is very critical, the COMPACT RAIL systemoffers the unique possibility of allowing the preload on standard sliders to be set according to theexact needs of the application.All sliders are interchangeable, by just simply resetting the preload.

U10

A

B

C

E

F

D

SLIDERS

MAIN COMPONENTS

Surface treatment:The slider body is chemical nickel plated.

A

BC

D

A8

- N... SERIESMaterials:A. Slider body: Aluminium alloy die casting;B. Heads: Polyester, Wipers: Modified Polyamide;C. Caps: Polyester;D. Pins: Steel;E. Rollers: 100Cr6 (52100) Steel;F. Lateral seals: Nytrilic rubber;

- C.. SERIESMaterials:A. Slider body: Steel;B. Wipers: Modified Polyamide;C. Pins: Steel;D. Rollers: 100Cr6 (52100) Steel;

Surface treatment:The slider body is zinc plated according to ISO 2081.

RAILS

Three different type rails - each with a particular raceways shape- are available: T, U and K.

A9

T U K

- GENERAL CHARACTERISTICSMaterial:Carbon bearing steel;Raceways:Induction hardened;Tolerances:See page A31;Surface treatment:Electrolytic zinc-plating according to ISO 2081 standard (not present on the raceways).See also page A37;

- FIXING HOLESThe rails are supplied in two versions, according to the hole type of the fixing screws. C’sunkholes indicated by suffix ..V and counter-bored holes indicated by the suffix ..C. (see page A26for details). I.e. a size 43 T-rail with honed raceways and cylindrical fixing holes is indicated bythe code TLC43.

- RACEWAYS PRECISION GRADEThe rails are supplied with honed raceways.

U12A10

C0rad

C0ax

My

Mx Mz

GENERAL PERFORMANCELOAD CAPACITIES PER SLIDER

18

- 18 SERIES

- 28 SERIES

- 43 SERIES

28

43

- 63 SERIES

63

epytredilS fo.oNsrellor

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz]mN[

82TN 3 0712 046 2.6 0.61 2.72

A-5-L82TN 5 0852 009 5.11 0.92 7.18

08-82WSC08-82WDC 3 0712 046 2.6 0.61 2.72

001-82WSC 4 0712 057 5.11 7.12 7.18

521-82WSC521-82WDC 5 0852 009 5.11 0.92 7.18

051-82WSC 6 0852 0701 7.31 2.63 1.631


C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz]mN[

34TN 3 0055 0751 6.32 0.06 5.401

A-5-L34TN 5 0456 5122 6.34 6.801 5.313

021-34WSC021-34WDC 3 0055 0751 6.32 0.06 5.401

051-34WSC 4 0055 5581 6.34 5.18 5.313

091-34WSC091-34WDC 5 0456 5122 6.34 6.801 5.313

032-34WSC 6 0456 5462 0.25 8.531 5.225


C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz]mN[

36TN 3 00521 0006 521 172 763

081-36WSC 3 00521 0006 521 172 763

532-36WSC 4 00521 0027 052 314 0011

092-36WSC 5 00051 0058 052 115 0011

543-36WSC 6 00051 00001 053 986 0381

Note: for details about size 18, see page A12


Note: for details about size 43, see pages A20 and A21



C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz]mN[

81TN 3 028 062 5.1 7.4 2.8

06-81WSC 3 028 062 5.1 7.4 2.8

08-81WSC 4 028 003 8.2 0.7 7.42

001-81WSC 5 579 063 8.2 4.9 7.42

021-81WSC 6 579 044 3.3 8.11 1.14

A11

18 SERIESSLIDERS

* For roller characteristics see page A25


epytredilS fo.oNsrellor *rellorfoepyT gnixiffo.oN

selohthgieW

]g[tnemtsujdA

yek

Z2-06-81WSCSR2-06-81WSC 3 81NPC-81APC 2 04 81KC

Z2-08-81WSCSR2-08-81WSC 4 81APC 2 05 81KC

Z2-001-81WSCSR2-001-81WSC 5 81APC 4 06 81KC

Z2-021-81WSCSR2-021-81WSC 6 81APC 3 07 81KC

- N... SERIES

- CSW.. SERIES


selohthgieW

]g[tnemtsujdA

yek

81UN-81TN 3 81NPC-81APC 2 03 81KC

U14A12

C0rad

C0ax

My

Mx Mzs

Mzd

18 SERIES Rail weight:550 g/mRAILS

With counterbored holes With countersunk holes

epytliaR shtgneldradnatS L ]mm[

81CLU-81CLT

81VLU-81VLT

088-008-027-046-065-084-004-023-042-0610251-0441-0631-0821-0021-0211-0401-069

0002-0291-0481-0671-0861-0061

MOUNTED RAIL/SLIDER

# min. 16.5 max. 17.6

# min. 14.7 max. 16.1

TL.../NT18 UL.../NU18 TL.../CSW18-T UL.../CSW18-U

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

81TN 0351 028 062 5.1 7.4 2.8

81UN 0351 028 0 0 0 2.8

..-06-81WSC 0351 028 062 5.1 7.4 2.8

A-..-08-81WSC 0351 028 003 8.2 0.7 2.8 7.42

B-..-08-81WSC 0351 028 003 8.2 0.7 7.42 2.8

..-001-81WSC 0381 579 063 8.2 4.9 7.42

A-..-021-81WSC 0381 579 044 3.3 8.11 7.42 1.14

B-..-021-81WSC 0381 579 044 3.3 8.11 1.14 7.42

LOAD CAPACITYThe load capacities indicated in this paragraph,refer to the “standard” positioning of the sliderinto the rail with the direction of the fixed rollerscorresponding to that of the radial load.

Holes for M4 Torx®

screws suppliedtogether with therails (see page A27)

C’sunk holes for screwsM4x0.7 DIN 7991

TLC18 ULC18 TLV18 ULV18

Note: The load capacities indicated in thetable refer to CSW sliders utilized with T..rails; the values of C0ax, Mx and My are equalto 0 if used in U-rails.

A13

28 SERIESSLIDERS


- N... SERIES


selohthgieW

]g[tnemtsujdA

yek

82UN-82TN 3 82NPC-82APC 2 511 82KC

* The number of rollers varies according to the configuration (see page A16)

- N...L SERIES

epytredilS fo.oN*srellor **rellorfoepyT gnixiffo.oN

selohthgieW

]g[tnemtsujdA

yek

L82UN-L82TN 5-3 82APC 4 002 82KC

** For roller characteristics see page A25

U16A14

28 SERIES- CSW.. SERIES



selohthgieW

]g[tnemtsujdA

yek


Z2-001-82WSCSR2-001-82WSC 4 82APC 2 591 82KC

Z2-521-82WSCSR2-521-82WSC 5 82APC 4 042 82KC

Z2-051-82WSCSR2-051-82WSC 6 82APC 3 092 82KC


selohthgieW

]g[tnemtsujdA

yek

Z2-08-82WDCSR2-08-82WDC 3 82APC 2 512 82KC

Z2-521-82WDCSR2-521-82WDC 5 82APC 4 003 82KC


- CDW.. SERIES

A15

28 SERIESRAILS Rail weight:1000 g/m

With counterbored holesHoles for M5 Torx® screwssupplied together with therails (see page A27)



82CLU-82CLT

82VLU-82VLT

0401-069-088-008-027-046-065-084-004-023-0420671-0861-0061-0251-0441-0631-0821-0021-02110842-0042-0232-0422-0612-0802-0002-0291-0481

0023-0213-0403-0692-0882-0082-0272-0462-0652

TL.../NT28TL.../NT28L

UL.../NU28UL.../NU28L

TL.../CSW28-T UL.../CSW28-U

MOUNTED RAIL/SLIDER

TL.../CDW28-T UL.../CDW28-U

# min. 24 max. 25.3

# min. 23.3 max. 25.2

# min. 23.5 max. 25.4

TLC28 ULC28 TLV28 ULV28

With countersunk holes

U18A16

C0rad

C0ax

My

Mx Mzs

Mzd

LOAD CAPACITY

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

82TN 0624 0712 046 2.6 0.61 2.72

82UN 0624 0712 0 0 0 2.72

..-08-82WSC 0624 0712 046 2.6 0.61 2.72

A-..-001-82WSC 0624 0712 057 5.11 7.12 2.72 7.18

B-..-001-82WSC 0624 0712 057 5.11 7.12 7.18 2.72

..-521-82WSC 5605 0852 009 5.11 0.92 7.18

A-..-051-82WSC 5605 0852 0701 7.31 2.63 7.18 1.631

B-..-051-82WSC 5605 0852 0701 7.31 2.63 1.631 7.18

..-08-82WDC 0624 0712 046 2.6 0.61 2.72

..-521-82WDC 5605 0852 009 5.11 0.92 7.18

The load capacities indicated in this paragraph,refer to the “standard” positioning of the slider intothe rail with the direction of the fixed rollerscorresponding to that of the radial load.

The sliders of N.28L series are available in six configurations studied to offer great versatility of use.

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

A-3-L82TN 0624 0712 046 2.6 0.92 4.45

A-4-L82TN 0624 0712 057 5.11 0.92 4.45 5.801

B-4-L82TN 0624 0712 057 5.11 0.92 5.801 4.45

C-4-L82TN 0624 0712 057 5.11 0.92 7.18

A-5-L82TN 5605 0852 009 5.11 0.92 7.18

B-5-L82TN 6186 2743 046 2.6 0.92 4.45

A-3-L82UN 0624 0712 0 0 0 4.45

A-4-L82UN 0624 0712 0 0 0 4.45 5.801

B-4-L82UN 0624 0712 0 0 0 5.801 4.45

C-4-L82UN 0624 0712 0 0 0 7.18

A-5-L82UN 5605 0852 0 0 0 7.18

B-5-L82UN 6186 2743 0 0 0 4.45

SLIDER CONFIGURATIONSNT28L-3-A / NU28L-3-A

NT28L-4-A / NU28L-4-A

NT28L-4-B / NU28L-4-B

NT28L-4-C / NU28L-4-C

NT28L-5-A / NU28L-5-A

NT28L-5-B / NU28L-5-B

Note: The load capacities indicated in the table refer to CSW and CDW sliders utilized with T.. rails;the values of Coax, Mx and My are equal to 0 if used in U-rails.

A17

43 SERIESSLIDERS- N... SERIES



selohthgieW

]g[tnemtsujdA

yek

34UN-34TN 3 34NPC-34APC 2 583 34KC

34KN 3 34NRC-34ARC 2 583 34KC

- N...L SERIES

epytredilS fo.oN*srellor **rellorfoepyT gnixiffo.oN

selohthgieW

]g[tnemtsujdA

yek

L34UN-L34TN 5-3 34APC 4 006 34KC

L34KN 5-3 34ARC 4 006 34KC

* The number of rollers varies according to the configuration (see page A21)** For roller characteristics see page A25

U20A18

43 SERIES- CSW.. SERIES



selohthgieW

]g[tnemtsujdA

yek


Z2-051-34WSCSR2-051-34WSC 4 34APC 2 086 34KC

Z2-091-34WSCSR2-091-34WSC 5 34APC 4 048 34KC

Z2-032-34WSCSR2-032-34WSC 6 34APC 3 0101 34KC


selohthgieW

]g[tnemtsujdA

yek

Z2-021-34WDCSR2-021-34WDC 3 34APC 2 046 34KC

Z2-091-34WDCSR2-091-34WDC 5 34APC 4 059 34KC


- CDW.. SERIES

A19

43 SERIESRAILS Rail weight:2600 g/m

With counterbored holes


Holes for M8 Torx® screwssupplied together with therails (see page A27)



34VLT-34CLT

34VLU-34CLU

34VLK-34CLK

-0211-0401-069-088-008-027-046-065-084-004-0481-0671-0861-0061-0251-0441-0631-0821-0021-0652-0842-0042-0232-0422-0612-0802-0002-0291-0823-0023-0213-0403-0692-0882-0082-0272-0462

0063-0253-0443-0633

TLC43 ULC43 KLC43

TLV43 ULV43 KLV43

U22A20

C0rad

C0ax

My

Mx Mzs

Mzd

43 SERIESTL.../NT43TL.../NT43L

UL.../NU43UL.../NU43L

MOUNTED RAIL/SLIDER

# min. 37 max. 39.5

# min. 35.6 max. 39.5

KL.../NK43KL.../NK43L TL.../CSW43-T UL.../CSW43-U

TL.../CDW43-T UL.../CDW43-U

# min. 35.9 max. 39.8

* The K-rail allows the K-slider to rotate, thereforethis dimension will change under rotation.For more details see page A34.The K-rail must be mounted in such a way thatthe radial load is always carried by the rollers onthe slider in contact with the “V” shaped raceway.

LOAD CAPACITYThe load capacities indicated in this paragraph, refer to the “standard” positioning of the sliderinto the rail with the direction of the fixed rollers corresponding to that of the radial load.

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

34TN 08221 0055 0751 6.32 0.06 5.401

34UN 08221 0055 0 0 0 5.401

34KN 08221 0015 0231 0 4.05 9.69

..-021-34WSC 08221 0055 0751 6.32 0.06 5.401

A-..-051-34WSC 08221 0055 5581 6.34 5.18 5.401 5.313

B-..-051-34WSC 08221 0055 5581 6.34 5.18 5.313 5.401

..-091-34WSC 57641 0456 5122 6.34 6.801 5.313

A-..-032-34WSC 57641 0456 5122 0.25 8.531 5.313 5.225

B-..-032-34WSC 57641 0456 5122 0.25 8.531 5.225 5.313

..-021-34WDC 08221 0055 0751 6.32 0.06 5.401

..-091-34WDC 57641 0456 5122 6.34 6.801 5.313Note: The load capacities indicated in the table refer to CSW and CDW sliders utilized with T.. rails; thevalues of C0ax , Mx and My are equal to 0 if used in U-rails.

A21

43 SERIESThe sliders of N.43L series are available in six configurations studied to offer great versatility of use.

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

A-3-L34TN 08221 0055 0751 6.32 6.801 902

A-4-L34TN 08221 0055 5581 6.34 6.801 902 814

B-4-L34TN 08221 0055 5581 6.34 6.801 814 902

C-4-L34TN 08221 0055 5581 6.34 6.801 5.313

A-5-L34TN 57641 0456 5122 6.34 6.801 5.313

B-5-L34TN 05691 0088 0751 6.32 6.801 902

A-3-L34UN 08221 0055 0 0 0 902

A-4-L34UN 08221 0055 0 0 0 902 814

B-4-L34UN 08221 0055 0 0 0 814 902

C-4-L34UN 08221 0055 0 0 0 5.313

A-5-L34UN 57641 0456 0 0 0 5.313

B-5-L34UN 05691 0088 0 0 0 902

A-3-L34KN 08221 0015 0231 0 7.79 7.881

A-4-L34KN 08221 0015 0231 0 7.79 7.881 3.773

B-4-L34KN 08221 0015 0231 0 7.79 3.773 7.881

C-4-L34KN 08221 0015 0231 0 7.79 382

A-5-L34KN 57641 5606 0891 0 7.79 382

B-5-L34KN 05691 0618 0231 0 7.79 7.881

SLIDER CONFIGURATIONS

NT43L-3-A / NU43L-3-A / NK43L-3-A

NT43L-4-A / NU43L-4-A / NK43L-4-A

NT43L-4-B / NU43L-4-B / NK43L-4-B

NT43L-4-C / NU43L-4-C / NK43L-4-C

NT43L-5-A / NU43L-5-A / NK43L-5-A

NT43L-5-B / NU43L-5-B / NK43L-5-B

U24A22

63 SERIESSLIDERS- N... SERIES


selohthgieW

]g[tnemtsujdA

yek

36UN-36TN 3 36NPC-34APC 4 0701 36KC

36KN 3 36NRC-36ARC 4 0701 36KC

- CSW.. SERIES


selohthgieW

]g[tnemtsujdA

yek

RZ2-081-36WSC 3 36APC 4 0661 36KC

RZ2-532-36WSC 4 36APC 5 0712 36KC

RZ2-092-36WSC 5 36APC 6 0762 36KC

RZ2-543-36WSC 6 36APC 7 0713 36KC* For roller characteristics see page A25


A23

63 SERIESRAILS


36VLT-36CLT

36VLU-36CLU

36VLK-36CLK

-0631-0821-0021-0211-0401-069-088-008-027-046-065-0612-0802-0002-0291-04810671-0861-0061-0251-0441-0692-0882-0082-0272-0462-0652-0842-0042-0232-0422

0063-0253-0443-0633-0823-0023-0213-0403

Rail weight:6000 g/m

With counterbored holes


Holes for M8 “Torx® screws”supplied together with therails (see page A27)


TLC63 ULC63 KLC63

TLV63 ULV63 KLV63

U26A24

C0rad

C0ax

My

Mx Mzs

Mzd

63 SERIES

LOAD CAPACITYThe load capacities indicated in this paragraph, refer to the “standard” positioning of the sliderinto the rail with the direction of the fixed rollers corresponding to that of the radial load.

TL.../NT63 UL.../NU63

MOUNTED RAIL/SLIDER

# min. 50.5 max. 54

# min. 49.4 max. 53.3

KL.../NK63

TL.../CSW63-T UL.../CSW63-U * The K-rail allows the K-slider to rotate,therefore this dimension will change underrotation. For more details see page A34.The K-rail must be mounted in such a waythat the radial load is always carried by therollers on the slider in contact with the “V”shaped raceway.

epytredilS C]N[

C dar0]N[

C xa0]N[

Mx]mN[

MY]mN[

Mz ]mN[

M dz M sz

36TN 05703 00521 0006 521 172 763

36UN 05703 00521 0 0 0 763

36KN 05703 05511 5405 0 532 533

..-081-36WSC 05703 00521 0006 521 172 763

A-..-532-36WSC 05703 00521 0027 052 314 763 0011

B-..-532-36WSC 05703 00521 0027 052 314 0011 763

..-092-36WSC 00663 00051 0058 052 115 0011

A-..-543-36WSC 00663 00051 00001 053 986 0011 0381

B-..-543-36WSC 00663 00051 00001 053 986 0381 0011Note: The load capacities indicated in the table refer to CSW sliders utilized with T.. rails; ihe values of C0ax,Mx and My are equal to 0 if used with U-rails.

A25

ROLLERSCPA / CPN ROLLERSThe CPA is the eccentric roller used for the preload settingwhile the CPN is the non-eccentric roller. Both the CPN andthe CPA rollers are designed for T and U rails.The internal thread of the pivot has a special antilooseningshape, suitable for standard screws.

epyTsnoisnemiD ]mm[ C

]N[C dar0]N[

thgieW]g[

A B F G D M H e

Z2-81APCSR2-81APC 41 4 55.1 8.1 6 4M 5.5 4.0 567 014 4

Z2-82APCSR2-82APC 2.32 7 2.2 8.3 01 5M 7 6.0 0312 5801 91

Z2-34APCSR2-34APC 53 11 5.2 5.4 21 6M 21 8.0 0416 0572 06

RZ2-36APC 05 5.71 3.2 6 81 01M 61 2.1 57351 0526 091

Z2-81NPCSR2-81NPC 41 4 55.1 8.1 6 4M 5.5 - 567 014 4

Z2-82NPCSR2-82NPC 2.32 7 2.2 8.3 01 5M 7 - 0312 5801 91

Z2-34NPCSR2-34NPC 53 11 5.2 5.4 21 6M 21 - 0416 0572 06

RZ2-36NPC 05 5.71 3.2 6 81 8M 61 - 57351 0526 091

CRA / CRN ROLLERS

epyTsnoisnemiD ]mm[ C

]N[C dar0]N[

thgieW]g[

A B F G D M H e

Z2-34ARC 6.53 11 5.2 5.4 21 6M 21 8.0 0416 0552 06

RZ2-36ARC 7.94 5.71 3.2 6 81 01M 61 2.1 57351 5775 091

Z2-34NRC 6.53 11 5.2 5.4 21 6M 21 - 0416 0552 06

RZ2-36NRC 7.94 5.71 3.2 6 81 8M 61 - 57351 5775 091

SPECIAL SLIDERS

The CRA is the eccentric roller used for the preload settingwhile the CRN is the non-eccentric roller. Both the CRA andthe CPN rollers are designed for K rails.The internal thread of the pivot has a special antilooseningshape, suitable for standard screws.

By utilizing the rollers shown above, ROLLON can supply special CSW sliders with lengths,holes, and roller positions different from the standard versions.Contact our Technical Department for more information.

U28A26

RAIL MOUNTING-HOLE CRITERIAROLLON offers two rail mounting hole systems for the COMPACT RAIL system:counterbored and countersunksunk.In the two paragraphs below the criteria for which system should be selected is explained.

COMPACT “C” - Rails with counterbored holes

COMPACT “V” - Rails with countersunk holes

There are two main reasons for choosing counterbored mounting holes.1) High linear precision, which implies precise rail mounting, can only be offered by counterboredfixing holes. Counterbored fixing holes allow precise rail positioning according to an externalreference which assures and controls the required precision tolerances.2) The need to mount a rail using fixing holes which are not aligned is a common situation whenhaving only one rail and low precision requirements. In this case the counterbored holes areneeded because, having a larger diameter when compared to the screws, they allow the rail toadjust slightly during mounting.

Selection of rails with c’sunk holes is often based on the application’s low requirement for linearprecision and the decent alignment of the fixing holes. The use of countersunk fixing holeseliminates the necessity of time consuming rail reference positioning, as the rail aligns itselfaccording to the average hole position. The use of countersunksunk mounting holes could beused in many handling or automation applications or most applications where the rail is mountedto a T-slot.

A27

TORX® HEAD SCREWS

For the COMPACT RAIL counterbored hole rails,special dimension screws have been designed withTORX® fixing housing.The TORX® socket shallow head screws guaranteehigh tightening torque without plastic deformation orcracks. This increased torque allows the rails toremain well fixed even in the presence of vibrations.Tightening torque is transmitted with safety becausethe guide angle of 15° is very similar to the optimalvalue of torque transmission of gears. The largecontact area - even with a reduced depth - eliminatesany chance of concentrated stress and deformations,with consequent reduction of the wear of housing andkey, minimalizing the risk of the key sliding and“stripping” the housing.The six vertical contact surfaces maintain the key inthe right position, avoiding damage and workingwithout peak loads.

CHARACTERISTICS

large contactarea

low specificpressure

very smallcontact area

high specificpressure

HEXAGONALHOUSING

TORX®

HOUSING

TECHNICAL DATA

Note: all rails with counterbored fixing holeswill be supplied with these TORX® screws.Extra TORX® screws and inserts can beordered. See table at right.

COMPACT RAIL: THE LINEAR MOTION SOLUTION · The sliders run inside the hardened steel rails where...

Documents

Transcript of COMPACT RAIL: THE LINEAR MOTION SOLUTION · The sliders run inside the hardened steel rails where...